公开(公告)号：US6077453A

公开(公告)日：2000-06-20

申请号：US231763

申请日：1999-01-15

申请人： Hitoshi Saita ,  Tomofumi Kuroda ,  Shigeo Okamoto ,  Naoyoshi Sato

发明人： Hitoshi Saita ,  Tomofumi Kuroda ,  Shigeo Okamoto ,  Naoyoshi Sato

IPC分类号： C01G49/00 ,  C04B35/26 ,  C04B35/38 ,  H01F1/34 ,  H01F27/255 ,  C04D35/26

CPC分类号： C04B35/2658 ,  H01F1/344 ,  H01F27/255 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3275 ,  C04B2235/3277 ,  C04B2235/3284 ,  C04B2235/3293 ,  C04B2235/3418 ,  C04B2235/604

摘要： Provided are an Mn--Zn ferrite in which the core loss is low and Bs is high at high temperatures; a transformer capable of being small-sized and suitable to use at high temperatures; and a method for efficiently driving the transformer. Also provided is a transformer capable of being small-sized and suitable to use in a broad temperature range including high temperatures. Further provided are a high-efficiency transformer capable of being small-sized, in which the core loss in the ferrite core is low and the saturation magnetic flux density is high therein at the temperature at which the transformer is driven; and a high-efficiency driving method for the transformer. Depending on its use, Mn--Zn ferrite to be the ferrite core for the transformers comprises, as the essential components, specific amounts of Fe.sub.2 O.sub.3, ZnO and MnO, and, as the side components, specific amounts of SiO.sub.2, CaCO.sub.3, Nb.sub.2 O.sub.5 and ZrO.sub.2. The core of the transformers is made of the Mn--Zn ferrite.

摘要翻译： 提供一种其中铁损低低并且Bs在高温下高的Mn-Zn铁氧体; 能够小型化并适用于高温使用的变压器; 以及有效地驱动变压器的方法。 还提供了能够小型化并且适合在包括高温的宽温度范围内使用的变压器。 还提供了一种能够在变压器驱动的温度下铁氧体磁芯的磁芯损耗低和饱和磁通密度高的小型高效变压器， 和变压器的高效率驱动方法。 根据其用途，用作变压器的铁氧体磁心的Mn-Zn铁氧体作为必要成分，含有Fe 2 O 3，ZnO，MnO的特定量，作为侧面成分，可以使用特定量的SiO 2，CaCO 3，Nb 2 O 5，ZrO 2 。 变压器的核心由Mn-Zn铁氧体制成。